Horwitz, 1957? Series
 
Cover for Matt Slade Gunfighter (Horwitz, 1957 ? series) #1
Cover for Matt Slade Gunfighter (Horwitz, 1957 ? series) #2
Cover for Matt Slade Gunfighter (Horwitz, 1957 ? series) #4
Cover for Matt Slade Gunfighter (Horwitz, 1957 ? series) #5